The request / response that are contrary to the Web firewall security policies have been blocked.

Detect time	2025-05-13 16:56:50
Detect client IP	10.152.1.112 (x-forward-for : 3.148.106.2 )
Detect URL	http://it-kgedu1.kr/itbankcyber/course/itcourses/images/icon_mainbg_04.png